const Koa = require("koa");
const app = new Koa();
const json = require("koa-json");
const onerror = require("koa-onerror");
const bodyparser = require("koa-bodyparser");
const logger = require("koa-logger");
const path = require("path");
const cors = require("koa-cors");
const customPath = path.resolve(process.cwd(), `.env.${process.env.NODE_ENV}`);
require("dotenv").config({ path: customPath });

const index = require("./routes/index");
//错误处理
app.use(cors());
onerror(app);

app.use(
    bodyparser({
        enableTypes: ["json", "form", "text"],
    })
);
app.use(json());
app.use(logger());
app.use(require("koa-static")(__dirname + "/public"));

// 日志中间件
app.use(async (ctx, next) => {
    const start = new Date();
    await next();
    const ms = new Date() - start;
    console.log(`${ctx.method} ${ctx.url} - ${ms}ms`);
});

// routes
app.use(index.routes(), index.allowedMethods());

// error-handling
app.on("error", (err, ctx) => {
    console.error("server error", err, ctx);
});

module.exports = app;
